Amazon has introduced Alexa Guard for all echo users. Your echo can now hear broken glass, alert you to smoke detectors, and turn your lights on and off at random. However, it is not a complete security system.
What is Alexa Guard?
Alexa Guard is a new free Amazon service for Amazon Echo users. When you activate Guard, your echo devices will hear the sound of broken glass or smoke and carbon monoxide alarms. When an echo detects any of these sounds, it sends you a warning.
Amazon does this by changing the wake-up word behavior for your Echo devices. Normally, your echo waits for "Alexa" (or one of the optional wake-up words) to be activated. However, activating and activating Guard mode will add extra "wake-up words" that match the sound of glass breakage and alarms. In other words, your echo listens to these sounds as well as to "Alexa". If you disable Guard mode, your echo returns to its default behavior.
Apart from listening to problems, Guard can take some basic preventative measures. If you have smart lights tied to the Alexa platform, Guard may turn them on and off at random to preserve the look and feel of your home. You choose which intelligent lights to automate so your basement light does not turn on and off unnecessarily.
Once this feature is turned on, you can enable the guard by telling Alexa to say "I'm leaving" and "off" by saying "I'm home". Her echo says it starts or stops the watch. You will also receive an Alexa notification on your phone.
Alexa Guard is not a monitored security system, but helpful
Alexa Guard is not a supervised security system. Amazon has repeatedly stated this in their Frequently Asked Questions:
Alexa Guard is not a replacement for an alarm system or lifesaving facility and can not call emergency services such as police or fire departments on your behalf. Smart Alerts are provided for informational purposes only.
Note this. Alexa Guard will not turn to the police or the fire department for you. For example, suppose you are in the theater and your phone is set so that it does not bother you. If your house burns or a burglar breaks in all windows, you will not receive any notifications. It may be too late to notify the police or the fire department until you see the notifications.
If you are looking for a surveillance surveillance security system, consider using SimpliSafe or the Amazon ring alert system.  But there is a possibility that you do not normally leave your phone on and do not bother you when you leave the house. If you do not have a security system at the moment and you have one or more Amazon Echo devices in your house, this may be an improvement on your current situation.
Smoke detectors are an integral part of every home. If you leave the house, they will be of little use – unless you spend more than $ 100 per unit to replace your existing alerts with an intelligent version like Nest Protect. With Alexa Guard, you have the opportunity to be notified with only one echo about a fire or an intruder in your home. If your echo has a camera (like the echo show), you can use the drop-in feature to see what happens before you call the emergency service.
Homeland security is also about prevention and response. Fending off a house invasion is better than breaking one. For this reason, security systems recommend using a "protected by" sign: thieves prefer the lowest hanging fruit. Guard's smart-light integration looks like you're home, and that's helpful.
Some security systems work with Guard.
While Alexa Guard is not a security system itself, it can work with some monitored security systems. If you enable this option, Guard can forward your alarm notifications – along with recorded audio data – to your security service.
Your security service receives the information and acts on the company's estimates to contact you, call emergency services, or both. According to Amazon, Alexa Guard is compatible with ring and ADT monitored services. Others may be compatible.
Contact your security system to see if it works with Alexa Guard and what steps you need to take.
Using Alexa Guard
You must enable it before you can enable and disable Alexa Guard. First, open the Alexa app on your phone. Tap the Hamburger menu in the upper left corner.
Tap "Settings" in the menu bar.
Scroll through the list of options until "Guard" appears and tap it.
 Then tap "Set Up Guard" and you'll be asked to turn on Glass Detection, Smoke Detection, and Smart Light Random Generation. For each item you want to activate, tap Add.
After enabling the random smart lights, enter your zip code (to see when the sunset starts) and select the lights to randomize. Some lights are automatically selected. Activate the elements you want to add and deselect the elements you do not need for the rotation. Tap Next when you've selected your lights.
Finally, tap on "Confirm" to complete the setup process.
When you're ready to leave the house, say, "Alexa, I'm going," and Alexa Guard will spell. When you get home, tell Alexa "I'm home" and the guard will disarm. You receive notifications on your phone when Guard is turned on and off.
Once you understand what Alexa Guard is doing, it's pretty powerful. Without having to buy any glass breakage sensors or smart thermostats, you will receive notifications from home on the go. It will not solve every worst case scenario. Regardless of whether you are using a supervised security system or not, you can reassure yourself.